The lifetime of the B(s)0 has been measured in a data sample of 889 000 hadronic events recorded with the ALEPH detector at LEP. After background subtraction 30.8 +/- 6.9 events are attributed to the semileptonic decay of the B(S)0 to a D(S)- and an opposite-sign lepton. A maximum-likelihood fit to the distribution of the proper times of these events yields a B(s)0 lifetime of tau(B)s = 1.92 (-0.35)+0.45 +/- 0.04 ps.

Measurement of the Bs0 lifetime / Buskulic, D., de Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.-P., Minard, M.-N., Odier, P., Pietrzyk, B., Ariztizabal, F., Comas, P., Crespo, J.M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, Ll., Martinez, M., Mattison, T., Orteu, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 322:3(1994), pp. 275-286. [10.1016/0370-2693(94)91120-7]

Measurement of the Bs0 lifetime

Creanza, D.;Iaselli, G.;Maggi, G.;Brown, Carlaina Donn;
1994

Abstract

The lifetime of the B(s)0 has been measured in a data sample of 889 000 hadronic events recorded with the ALEPH detector at LEP. After background subtraction 30.8 +/- 6.9 events are attributed to the semileptonic decay of the B(S)0 to a D(S)- and an opposite-sign lepton. A maximum-likelihood fit to the distribution of the proper times of these events yields a B(s)0 lifetime of tau(B)s = 1.92 (-0.35)+0.45 +/- 0.04 ps.
1994
Measurement of the Bs0 lifetime / Buskulic, D., de Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.-P., Minard, M.-N., Odier, P., Pietrzyk, B., Ariztizabal, F., Comas, P., Crespo, J.M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, Ll., Martinez, M., Mattison, T., Orteu, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 322:3(1994), pp. 275-286. [10.1016/0370-2693(94)91120-7]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/1551
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